Liquid nitrogen
From OCE Space Simulation
Liquid nitrogen, or N2 in scientific terms is nitrogen gas that has been cooled to 63.15k or below, at which point the gas will condense into a liquid.
Liquid nitrogen is a specialty of Spacesim. Liquid nitrogen is used for EEP as a demonstration for how cold it can become on the outer planets, it has been used for publicity, usualy involving freezing marshmellows and impressing potential sim members at the week oh hype. Liquid nitrogen also playe a part in Sim Lore, being used in such stunts as the smoking bottle of doom and the toilet of death.